Carbon and nitrogen and an important element of living things. Nitrogen is a major component of DNA and amino acids while carbon can be found in almost all biomolecules. These elements, therefore, need to be renewed and recycled as they are utilized by ecosystems that is ever dynamic.
A A because it look like the definition
Um, can you please elaborate a little bit more.
Not entire sure because I haven't taken human anatomy but I'd guess it would have to be the digestive enzymes breaking it down
<span>A hypothesis is an educated guess. When scientist make a hypothesis, it gives them a reason to make an experiment to decide whether its accepted or not and they also learn more about that certain subject while doing so. </span>
